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rev 1082 : imported patch indy.compiler.patch
rev 1083 : [mq]: indy.compiler.inline.patch
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--- old/src/share/vm/ci/ciMethod.hpp
+++ new/src/share/vm/ci/ciMethod.hpp
1 1 /*
2 2 * Copyright 1999-2009 Sun Microsystems, Inc. All Rights Reserved.
3 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 4 *
5 5 * This code is free software; you can redistribute it and/or modify it
6 6 * under the terms of the GNU General Public License version 2 only, as
7 7 * published by the Free Software Foundation.
8 8 *
9 9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 12 * version 2 for more details (a copy is included in the LICENSE file that
13 13 * accompanied this code).
14 14 *
15 15 * You should have received a copy of the GNU General Public License version
16 16 * 2 along with this work; if not, write to the Free Software Foundation,
17 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 18 *
19 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 21 * have any questions.
22 22 *
23 23 */
24 24
25 25 class ciMethodBlocks;
26 26 class MethodLiveness;
27 27 class BitMap;
28 28 class Arena;
29 29 class BCEscapeAnalyzer;
30 30
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31 31
32 32 // ciMethod
33 33 //
34 34 // This class represents a methodOop in the HotSpot virtual
35 35 // machine.
36 36 class ciMethod : public ciObject {
37 37 friend class CompileBroker;
38 38 CI_PACKAGE_ACCESS
39 39 friend class ciEnv;
40 40 friend class ciExceptionHandlerStream;
41 + friend class ciBytecodeStream;
42 + friend class ciMethodHandle;
41 43
42 44 private:
43 45 // General method information.
44 46 ciFlags _flags;
45 47 ciSymbol* _name;
46 48 ciInstanceKlass* _holder;
47 49 ciSignature* _signature;
48 50 ciMethodData* _method_data;
49 51 BCEscapeAnalyzer* _bcea;
50 52 ciMethodBlocks* _method_blocks;
51 53
52 54 // Code attributes.
53 55 int _code_size;
54 56 int _max_stack;
55 57 int _max_locals;
56 58 vmIntrinsics::ID _intrinsic_id;
57 59 int _handler_count;
58 60 int _interpreter_invocation_count;
59 61 int _interpreter_throwout_count;
60 62
61 63 bool _uses_monitors;
62 64 bool _balanced_monitors;
63 65 bool _is_compilable;
64 66 bool _can_be_statically_bound;
65 67
66 68 // Lazy fields, filled in on demand
67 69 address _code;
68 70 ciExceptionHandler** _exception_handlers;
69 71
70 72 // Optional liveness analyzer.
71 73 MethodLiveness* _liveness;
72 74 #ifdef COMPILER2
73 75 ciTypeFlow* _flow;
74 76 #endif
75 77
76 78 ciMethod(methodHandle h_m);
77 79 ciMethod(ciInstanceKlass* holder, ciSymbol* name, ciSymbol* signature);
78 80
79 81 methodOop get_methodOop() const {
80 82 methodOop m = (methodOop)get_oop();
81 83 assert(m != NULL, "illegal use of unloaded method");
82 84 return m;
83 85 }
84 86
85 87 oop loader() const { return _holder->loader(); }
86 88
87 89 const char* type_string() { return "ciMethod"; }
88 90
89 91 void print_impl(outputStream* st);
90 92
91 93 void load_code();
92 94
93 95 void check_is_loaded() const { assert(is_loaded(), "not loaded"); }
94 96
95 97 void build_method_data(methodHandle h_m);
96 98
97 99 void code_at_put(int bci, Bytecodes::Code code) {
98 100 Bytecodes::check(code);
99 101 assert(0 <= bci && bci < code_size(), "valid bci");
100 102 address bcp = _code + bci;
101 103 *bcp = code;
102 104 }
103 105
104 106 public:
105 107 // Basic method information.
106 108 ciFlags flags() const { check_is_loaded(); return _flags; }
107 109 ciSymbol* name() const { return _name; }
108 110 ciInstanceKlass* holder() const { return _holder; }
109 111 ciMethodData* method_data();
110 112
111 113 // Signature information.
112 114 ciSignature* signature() const { return _signature; }
113 115 ciType* return_type() const { return _signature->return_type(); }
114 116 int arg_size_no_receiver() const { return _signature->size(); }
115 117 int arg_size() const { return _signature->size() + (_flags.is_static() ? 0 : 1); }
116 118
117 119 // Method code and related information.
118 120 address code() { if (_code == NULL) load_code(); return _code; }
119 121 int code_size() const { check_is_loaded(); return _code_size; }
120 122 int max_stack() const { check_is_loaded(); return _max_stack; }
121 123 int max_locals() const { check_is_loaded(); return _max_locals; }
122 124 vmIntrinsics::ID intrinsic_id() const { check_is_loaded(); return _intrinsic_id; }
123 125 bool has_exception_handlers() const { check_is_loaded(); return _handler_count > 0; }
124 126 int exception_table_length() const { check_is_loaded(); return _handler_count; }
125 127 int interpreter_invocation_count() const { check_is_loaded(); return _interpreter_invocation_count; }
126 128 int interpreter_throwout_count() const { check_is_loaded(); return _interpreter_throwout_count; }
127 129
128 130 Bytecodes::Code java_code_at_bci(int bci) {
129 131 address bcp = code() + bci;
130 132 return Bytecodes::java_code_at(bcp);
131 133 }
132 134 BCEscapeAnalyzer *get_bcea();
133 135 ciMethodBlocks *get_method_blocks();
134 136
135 137 bool has_linenumber_table() const; // length unknown until decompression
136 138 u_char* compressed_linenumber_table() const; // not preserved by gc
137 139
138 140 int line_number_from_bci(int bci) const;
139 141
140 142 // Runtime information.
141 143 int vtable_index();
142 144 address native_entry();
143 145 address interpreter_entry();
144 146
145 147 // Analysis and profiling.
146 148 //
147 149 // Usage note: liveness_at_bci and init_vars should be wrapped in ResourceMarks.
148 150 bool uses_monitors() const { return _uses_monitors; } // this one should go away, it has a misleading name
149 151 bool has_monitor_bytecodes() const { return _uses_monitors; }
150 152 bool has_balanced_monitors();
151 153
152 154 // Returns a bitmap indicating which locals are required to be
153 155 // maintained as live for deopt. raw_liveness_at_bci is always the
154 156 // direct output of the liveness computation while liveness_at_bci
155 157 // may mark all locals as live to improve support for debugging Java
156 158 // code by maintaining the state of as many locals as possible.
157 159 MethodLivenessResult raw_liveness_at_bci(int bci);
158 160 MethodLivenessResult liveness_at_bci(int bci);
159 161
160 162 // Get the interpreters viewpoint on oop liveness. MethodLiveness is
161 163 // conservative in the sense that it may consider locals to be live which
162 164 // cannot be live, like in the case where a local could contain an oop or
163 165 // a primitive along different paths. In that case the local must be
164 166 // dead when those paths merge. Since the interpreter's viewpoint is
165 167 // used when gc'ing an interpreter frame we need to use its viewpoint
166 168 // during OSR when loading the locals.
167 169
168 170 BitMap live_local_oops_at_bci(int bci);
169 171
170 172 #ifdef COMPILER1
171 173 const BitMap bci_block_start();
172 174 #endif
173 175
174 176 ciTypeFlow* get_flow_analysis();
175 177 ciTypeFlow* get_osr_flow_analysis(int osr_bci); // alternate entry point
176 178 ciCallProfile call_profile_at_bci(int bci);
177 179 int interpreter_call_site_count(int bci);
178 180
179 181 // Given a certain calling environment, find the monomorphic target
180 182 // for the call. Return NULL if the call is not monomorphic in
181 183 // its calling environment.
182 184 ciMethod* find_monomorphic_target(ciInstanceKlass* caller,
183 185 ciInstanceKlass* callee_holder,
184 186 ciInstanceKlass* actual_receiver);
185 187
186 188 // Given a known receiver klass, find the target for the call.
187 189 // Return NULL if the call has no target or is abstract.
188 190 ciMethod* resolve_invoke(ciKlass* caller, ciKlass* exact_receiver);
189 191
190 192 // Find the proper vtable index to invoke this method.
191 193 int resolve_vtable_index(ciKlass* caller, ciKlass* receiver);
192 194
193 195 // Compilation directives
194 196 bool will_link(ciKlass* accessing_klass,
195 197 ciKlass* declared_method_holder,
196 198 Bytecodes::Code bc);
197 199 bool should_exclude();
198 200 bool should_inline();
199 201 bool should_not_inline();
200 202 bool should_print_assembly();
201 203 bool break_at_execute();
202 204 bool has_option(const char *option);
203 205 bool can_be_compiled();
204 206 bool can_be_osr_compiled(int entry_bci);
205 207 void set_not_compilable();
206 208 bool has_compiled_code();
207 209 int instructions_size();
208 210 void log_nmethod_identity(xmlStream* log);
209 211 bool is_not_reached(int bci);
210 212 bool was_executed_more_than(int times);
211 213 bool has_unloaded_classes_in_signature();
212 214 bool is_klass_loaded(int refinfo_index, bool must_be_resolved) const;
213 215 bool check_call(int refinfo_index, bool is_static) const;
214 216 void build_method_data(); // make sure it exists in the VM also
215 217 int scale_count(int count, float prof_factor = 1.); // make MDO count commensurate with IIC
216 218 bool is_method_handle_invoke() const;
217 219 ciInstance* method_handle_type();
218 220
219 221 // What kind of ciObject is this?
220 222 bool is_method() { return true; }
221 223
222 224 // Java access flags
223 225 bool is_public () const { return flags().is_public(); }
224 226 bool is_private () const { return flags().is_private(); }
225 227 bool is_protected () const { return flags().is_protected(); }
226 228 bool is_static () const { return flags().is_static(); }
227 229 bool is_final () const { return flags().is_final(); }
228 230 bool is_synchronized() const { return flags().is_synchronized(); }
229 231 bool is_native () const { return flags().is_native(); }
230 232 bool is_interface () const { return flags().is_interface(); }
231 233 bool is_abstract () const { return flags().is_abstract(); }
232 234 bool is_strict () const { return flags().is_strict(); }
233 235
234 236 // Other flags
235 237 bool is_empty_method() const;
236 238 bool is_vanilla_constructor() const;
237 239 bool is_final_method() const { return is_final() || holder()->is_final(); }
238 240 bool has_loops () const;
239 241 bool has_jsrs () const;
240 242 bool is_accessor () const;
241 243 bool is_initializer () const;
242 244 bool can_be_statically_bound() const { return _can_be_statically_bound; }
243 245
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244 246 // Print the bytecodes of this method.
245 247 void print_codes_on(outputStream* st);
246 248 void print_codes() {
247 249 print_codes_on(tty);
248 250 }
249 251 void print_codes_on(int from, int to, outputStream* st);
250 252
251 253 // Print the name of this method in various incarnations.
252 254 void print_name(outputStream* st = tty);
253 255 void print_short_name(outputStream* st = tty);
256 +
257 + methodOop get_method_handle_target() {
258 + klassOop receiver_limit_oop = NULL;
259 + int flags = 0;
260 + return MethodHandles::decode_method(get_oop(), receiver_limit_oop, flags);
261 + }
254 262 };
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